sir humphry davy (1778-1829), english chemist and physicist

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Sir Humphry Davy (1778-1829), English chemist and physicist

{i} Humphry Davy

Sir Humphry Davy

born Dec. 17, 1778, Penzance, Cornwall, Eng. died May 29, 1829, Geneva, Switz. English chemist. By his early 20s his work on gases had established his reputation. His discovery of the anesthetic effect of nitrous oxide in 1799 was a major contribution to surgery. He also did early research on voltaic cells and batteries, tanning, electrolysis, and mineral analysis. In Elements of Agricultural Chemistry (1813) he became the first to apply chemical principles systematically to farming. He was the first to isolate potassium, sodium, barium, strontium, magnesium, and calcium; he also discovered boron and studied chlorine and iodine extensively. He analyzed many pigments and proved that diamond is a form of carbon. He was one of the greatest exponents of the scientific method. His research on mine explosions and flame and his invention of the safety lamp brought him great prestige, and in 1820 he was made president of the Royal Society of London

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sir humphry Da-vy (1778-1829), Eng-lish chem-ist and phys-i-cist